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([193.32.126.165]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-432aa6b2d13sm28918935e9.12.2024.11.06.09.09.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Nov 2024 09:09:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1730912983; x=1731517783; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ZPA8Cc1mdZFWuTHCl3i+/VHbdFpR2xccyaZdsIZIIaM=; b=WzFGC/bB5DdPciU2yk986DGoqqvUV7+/CFU1rgjRvcj1wmS/XQP2B4eVyK+00N16ti W5yQYADOQOtTMRWiXd7rc+uEmyyVyaZ2YCZYPOEfPJpqA0ZCvaPQSE4hO5FaS1LzPT58 GvnUoZ+REwSvflaxp5FxqgGpkzbEYSg3+eydkJylx6aH0b0uNldJEdtYVZxM5V6m+FZk 8g7RKu+hKYKEzeGpKNL0E9n25vRfjkTOJstwt4jhHvgCHmvQLM2FR3vmOigx9L3wzm9f OtPWH3sUXVwL9/zqHwYnwXeihAPviojvjH0CK8R+RtzIZi7xsLbmRxGZE4o5FNc/hU/E vKXA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730912983; x=1731517783; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ZPA8Cc1mdZFWuTHCl3i+/VHbdFpR2xccyaZdsIZIIaM=; b=vyRc4Zx1C7CNQNcxqqc7WBfabIwAvMtk6w2EAu0saUJsY8BV5ailqGiP9z7qA6d1GV hIryKcoidFmC7qHX/EskkEiwwnJTya94xe62TdncYqWU8K7u+tMoN0/2v5xDRHsy+IkS fA6AFOvz9DEii56JncYDLIycwOQLlVknS1AEuKhFEfl+08kRQnMqaJiuOtrlnaen2kYN +6VlvBRSnCJLEHkNPT8p1zHO63uqxStfAsFBXyv+Xhha2BdouSUvpNlkigfu9hggCpR4 t2vkCo+/iypvuOE+2DCwEKvNerVu8uBm/XYy9Nc4iW4zqaj0ZDmuv5RBiPlSXneW4K8G hPRA== X-Gm-Message-State: AOJu0YxAEo3Ok2sfK5j5g0wWQmGUjFN+QP19U2vGC3nYcwoWLGceqYuC nv1iROXm5y7KUTXPszJ89LZDTL2KELrsiTMgm0zxXPUymkR8p2sjawVVAfZmVngk8Rhp0/OCJa+ B7gYtTfgo X-Google-Smtp-Source: AGHT+IEXPLKjeYiRUIuihCfqZe7rkM/WO+E4IDstpWtT9SuoQrgZOm9yRk16B6FcIzRhEkTbEzen0Q== X-Received: by 2002:a05:6512:b82:b0:539:e4b5:10e5 with SMTP id 2adb3069b0e04-53b348ec004mr21536432e87.9.1730912982670; Wed, 06 Nov 2024 09:09:42 -0800 (PST) From: Pierrick Bouvier To: qemu-devel@nongnu.org Cc: Pierrick Bouvier , Alexandre Iooss , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Cleber Rosa , Mahmoud Mandour , John Snow Subject: [PATCH v3 2/3] plugins: detect qemu plugin API symbols from header Date: Wed, 6 Nov 2024 09:09:22 -0800 Message-Id: <20241106170923.2976750-3-pierrick.bouvier@linaro.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241106170923.2976750-1-pierrick.bouvier@linaro.org> References: <20241106170923.2976750-1-pierrick.bouvier@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::12f; envelope-from=pierrick.bouvier@linaro.org; helo=mail-lf1-x12f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1730913051451116600 Content-Type: text/plain; charset="utf-8" Instead of using a static file (error prone and hard to keep in sync), we generate it using a script. Note: if a symbol is not exported, we'll now notice it when linking for Windows/MacOS platforms. Signed-off-by: Pierrick Bouvier --- MAINTAINERS | 1 + plugins/meson.build | 12 ++++++--- scripts/qemu-plugin-symbols.py | 45 ++++++++++++++++++++++++++++++++++ 3 files changed, 55 insertions(+), 3 deletions(-) create mode 100755 scripts/qemu-plugin-symbols.py diff --git a/MAINTAINERS b/MAINTAINERS index 0844f5da196..022e9f0f57f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3746,6 +3746,7 @@ F: plugins/ F: tests/tcg/plugins/ F: tests/functional/test_aarch64_tcg_plugins.py F: contrib/plugins/ +F: scripts/qemu-plugin-symbols.py =20 AArch64 TCG target M: Richard Henderson diff --git a/plugins/meson.build b/plugins/meson.build index 51297582f93..d60be2a4d6d 100644 --- a/plugins/meson.build +++ b/plugins/meson.build @@ -2,11 +2,17 @@ if not get_option('plugins') subdir_done() endif =20 +qemu_plugin_symbols =3D configure_file( + input: files('../include/qemu/qemu-plugin.h'), + output: 'qemu-plugin.symbols', + capture: true, + command: [files('../scripts/qemu-plugin-symbols.py'), '@INPUT@']) + # Modules need more symbols than just those in plugins/qemu-plugins.symbols if not enable_modules if host_os =3D=3D 'darwin' configure_file( - input: files('qemu-plugins.symbols'), + input: qemu_plugin_symbols, output: 'qemu-plugins-ld64.symbols', capture: true, command: ['sed', '-ne', 's/^[[:space:]]*\\(qemu_.*\\);/_\\1/p', '@IN= PUT@']) @@ -15,7 +21,7 @@ if not enable_modules # LLVM/lld does not support exporting specific symbols. However, it wo= rks # out of the box with dllexport/dllimport attribute we set in the code. else - emulator_link_args +=3D ['-Xlinker', '--dynamic-list=3D' + (meson.proj= ect_source_root() / 'plugins/qemu-plugins.symbols')] + emulator_link_args +=3D ['-Xlinker', '--dynamic-list=3D' + qemu_plugin= _symbols.full_path()] endif endif =20 @@ -24,7 +30,7 @@ if host_os =3D=3D 'windows' # First, create a .def file listing all the symbols a plugin should expe= ct to have # available in qemu win32_plugin_def =3D configure_file( - input: files('qemu-plugins.symbols'), + input: qemu_plugin_symbols, output: 'qemu_plugin_api.def', capture: true, command: ['sed', '-e', '0,/^/s//EXPORTS/; s/[{};]//g', '@INPUT@']) diff --git a/scripts/qemu-plugin-symbols.py b/scripts/qemu-plugin-symbols.py new file mode 100755 index 00000000000..e285ebb8f9e --- /dev/null +++ b/scripts/qemu-plugin-symbols.py @@ -0,0 +1,45 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- +# +# Extract QEMU Plugin API symbols from a header file +# +# Copyright 2024 Linaro Ltd +# +# Author: Pierrick Bouvier +# +# This work is licensed under the terms of the GNU GPL, version 2 or later. +# See the COPYING file in the top-level directory. +# +# SPDX-License-Identifier: GPL-2.0-or-later + +import argparse +import re + +def extract_symbols(plugin_header): + with open(plugin_header) as file: + content =3D file.read() + # Remove QEMU_PLUGIN_API macro definition. + content =3D content.replace('#define QEMU_PLUGIN_API', '') + expected =3D content.count('QEMU_PLUGIN_API') + # Find last word between QEMU_PLUGIN_API and (, matching on several li= nes. + # We use *? non-greedy quantifier. + syms =3D re.findall(r'QEMU_PLUGIN_API.*?(\w+)\s*\(', content, re.DOTAL= L) + syms.sort() + # Ensure we found as many symbols as API markers. + assert len(syms) =3D=3D expected + return syms + +def main() -> None: + parser =3D argparse.ArgumentParser(description=3D'Extract QEMU plugin = symbols') + parser.add_argument('plugin_header', help=3D'Path to QEMU plugin heade= r.') + args =3D parser.parse_args() + + syms =3D extract_symbols(args.plugin_header) + + print('{') + for s in syms: + print(" {};".format(s)) + print('};') + +if __name__ =3D=3D '__main__': + main() --=20 2.39.5